Is Filesystem Unlocker free?

Yes, Filesystem Unlocker is free to use. It is available as a free plugin on WordPress.org.

How many websites use Filesystem Unlocker?

Filesystem Unlocker has 10 active installations as tracked by WordPress.org.

What are the best Filesystem Unlocker alternatives?

Popular alternatives to Filesystem Unlocker include File Manager, Advanced File Manager – Ultimate File…, Media Sync. You can compare them side-by-side on our comparison pages.

Does Filesystem Unlocker work with the latest WordPress?

Filesystem Unlocker has been tested up to WordPress 4.4.34. It requires WordPress 4.0.0+ and PHP false+.

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Filesystem Unlocker

Name: Filesystem Unlocker
Author: duke_justice

Plugin to completely lockdown the wordpress filesystem so that no hacker can write to it.

By duke_justice·Ftp·Free

·10 active installs·Updated 10 years ago

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As of April 2026, Filesystem Unlocker is a WordPress ftp plugin with 10 active installations and a 0/5 rating0. It has been downloaded 1.5K+ times in total. Requires WordPress 4.0.0+ and PHP false+. Available on WordPress.org since 2016. Last updated 10 years ago — may have compatibility concerns. Top alternative: File Manager.

0/5Rating

10active installs

1.5K+total downloads

10 yearssince 2016

Overview

I created this plugin because I am tired of having my WordPress sites being hacked. It is used to completely lock the filesystem with the help of a bash script. The said script is external from the website and ran via cron so you need cron access to make this work. Otherwise, this plugin is useless to you.

This plugin has a known bug. See FAQs.

Read full description on WordPress.org